The relationship between vacuum degree and flow rate
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Venturi scrubbers are being designed recently, and one of the keys to the treatment effect is: The flow rate at the Venturi throat reaches a speed sufficient to extract exhaust gas. The flow rate range in the design in the book is very wide, 50~120m3/s. I don’t know how to choose. If I already know the vacuum degree of the exhaust gas inlet, how can I calculate the required flow rate of the throat air flow?
The general speed is above 80 m/s. (The poster’s flow rate unit is wrong). You can roughly calculate it using Bernoulli's equation. Notice: This is a compressible fluid.